Dayton, Ohio
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -6° -29.4° (1985) 22.2° (1950) 2.65" 6.3"
February -4° -22.8° (1936) 25° (2000) 2.37" 5.3"
March 11° -17.2° (1943) 28.9° (2007) 3.08" 2.6"
April 17° -7.8° (1972) 32.2° (1986) 4.04" 0.2"
May 12° 23° -1.1° (1966) 35° (1998) 4.38" 0"
June 17° 28° 5.6° (1990) 39.4° (1994) 4.17" 0"
July 19° 31° 9.4° (1940) 40.6° (1934) 3.93" 0"
August 18° 29° 6.7° (1946) 39.4° (1999) 3.28" 0"
September 14° 26° 0.6° (1942) 37.8° (1954) 2.61" 0"
October 19° -5° (1952) 33.3° (2007) 2.69" 0"
November 11° -15.6° (1958) 27.2° (1999) 3.27" 0.8"
December -3° -26.7° (1989) 23.9° (1998) 2.94" 3.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 -0.6° 7.2° -13° (1976) 19° (1991) 0.11" NA
Dec 2 -1.1° 7.2° -16° (1942) 20° (1970) 0.1" NA
Dec 3 -1.1° 7.2° -16° (1966) 22° (1982) 0.1" NA
Dec 4 -1.1° 6.7° -14° (1966) 22° (1982) 0.1" NA
Dec 5 -1.7° 6.7° -13° (1935) 22° (1998) 0.1" NA
Dec 6 -1.7° 6.1° -15° (1958) 22° (2001) 0.1" NA
Dec 7 -1.7° 6.1° -18° (1977) 24° (1998) 0.1" NA
Dec 8 -2.2° 6.1° -16° (1977) 18° (1966) 0.1" NA
Dec 9 -2.2° 5.6° -17° (1958) 20° (1966) 0.1" NA
Dec 10 -2.2° 5.6° -19° (1958) 16° (1970) 0.1" NA
Dec 11 -2.8° 5.6° -19° (1958) 21° (1971) 0.1" NA
Dec 12 -2.8° -18° (1977) 18.9° (2007) 0.1" NA
Dec 13 -2.8° -17° (1960) 17° (1972) 0.1" NA
Dec 14 -3.3° 4.4° -15° (1963) 17° (1975) 0.1" NA
Dec 15 -3.3° 4.4° -21° (1951) 19° (1975) 0.09" NA
Dec 16 -3.3° 4.4° -23° (1951) 18° (1971) 0.09" NA
Dec 17 -3.9° 4.4° -19° (1989) 19° (1984) 0.09" NA
Dec 18 -3.9° 3.9° -19° (1989) 21° (1984) 0.09" NA
Dec 19 -3.9° 3.9° -19° (1963) 17° (1967) 0.09" NA
Dec 20 -3.9° 3.9° -19° (1942) 18° (1949) 0.09" NA
Dec 21 -4.4° 3.3° -20° (1942) 17° (1949) 0.09" NA
Dec 22 -4.4° 3.3° -27° (1989) 19° (1967) 0.09" NA
Dec 23 -4.4° 3.3° -27° (1989) 17° (1957) 0.09" NA
Dec 24 -4.4° 3.3° -23° (1983) 19° (1964) 0.09" NA
Dec 25 -5° 2.8° -24° (1983) 17° (1979) 0.09" NA
Dec 26 -5° 2.8° -23° (1983) 17° (1982) 0.09" NA
Dec 27 -5° 2.8° -18° (1935) 19° (1959) 0.09" NA
Dec 28 -5° 2.8° -18° (1935) 17° (1971) 0.09" NA
Dec 29 -5° 2.8° -17° (1961) 19° (1984) 0.09" NA
Dec 30 -5.6° 2.2° -21° (1983) 18° (1984) 0.09" NA
Dec 31 -5.6° 2.2° -20° (1983) 20° (1951) 0.09" NA
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